BELTTT 3000W Pure Sine Wave Inverter 12V DC to 120V AC for RV, Truck, Off-Grid, Home, Solar Car Power Inverter with Dual AC, 20A Socket, 5V 2.1A USB, Hardwire Port, Remote Controller 23Ft Cable

WOW, I’m impressed! It met all specs, 3000 Watts continuous AND 6000 Watts inrush. I did a full evaluation. Beautiful sine wave, not just at idle but also at full load (shown in picture). I tried circular saws, angle grinders, shop vacs and space heaters, right up to 288 DC amps input continuous with 25.38 amps at 119 vac out = 3020 watts!Fans come on when load increases and not overly noisy, less than 50 db @ 1 foot 19.9khz. Fan won’t come on immediately below 500 watts or until it gets hot. At 250 watts the fan may never need to turn on. An electric blanket or T.V. Probably won’t start the fan. The fans being on should be a subtle reminder that you are pulling power and using your battery. More specs; Weight less than TEN POUND! Frequency at idle 59.9 Hz and at full load 59.8 Hz. Idle current 24Watts or 1.8 amps. Indicated DC voltage is actually .050 lower than actual. Use a tie straps to secure the terminal protectors, don’t sandwich the plastic to attach the cable lugs. Provided cables are 50mm2 (equivalent to #1AWG) vinyl jacket makes it look bigger. This should be sufficient for most but it should be noted that it will get hot at sustained full rated load and will account for 1/4 volt loss at the inverter’s terminals when loaded and when the battery is low it could cause a low voltage shut down that little bit earlier. Since the inverter is so good for the price point I won’t take a star away. For a good install and any length of distance longer than cables provided, use 4/0 cables and 400 T class slow blow fuse and BlueSea holder. For LifePO4 batteries you will need; one battery with a high quality BMS rated at least 300 amps OR two batteries, each with 200 amp bms’s in PARALLEL to attain full power potential of this inverter. For lead acid perhaps one large battery (high cranking current) may work but it will be depleted much faster than lithium. Be sure to “pre-charge” before connecting even if it’s turned off. A simple filiment light bulb will work.

Great price on an awesome pure sine wave inverter!If you’re running a microwave or other electronic equipment you need a pure sine wave inverter…not a modified sine wave inverter. I found out the hard way. I tried using a cheaper modified sine wave inverter in my work van and it got fried (it blew three 40-amp fuses inside the inverter).Now I have this 2000 watt pure sine wave inverter running a microwave, battery chargers, lights, etc, with no problem.I recommend running the vehicle engine while using it to avoid running the vehicle battery down…I had to jump start the vehicle after I left the inverter on for too long.I like the screen on the front…it shows you the state of the vehicle battery (DC) and the power available/consumed (AC).Get a bigger inverter than you need…the microwave is 750 watts, but with the inrush current you want to go bigger so that it doesn’t fail.Go Big or Go Home!

Using this in a 2024 Freightliner Cascadia. It's a great price for a pure sine wave inverter, but there's a few caveat's. First, if this is going to be your only AC source when the truck is turned off, then I would look for something more expensive (more efficient). This isn't very efficient, and will draw down your batteries to 12 volts or less simply by being turned on. I ran a CPAP machine which uses less than 20 watts, and my batteries went from 13 volts when I first shut down to 12 volts in the morning, causing the APU to start automatically. The pure sine wave part is nice- no more buzzing noises from my electronics, however I can't trust this unit to be on while the truck is off. Before this, I had a modified square wave Cobra, which I would not recommend- It was however, more efficient, and I could leave it on 24/7 and still wake up with 12.4 volts in my batteries.I'm keeping the Belttt inverter, but I definitely would not recommend getting this if you need to use it while the truck is off.Also the screens are way too bright at night, and there's no way to adjust them.The fans are powerful, and will activate at full speed with any kind of substantial load. You can hear them, but they aren't that annoying. On a scale of 0-5 can opener's, with 0 being the best, and 5 being the most annoying, I would rate this unit at 1 or 2 can openers max. It's tolerable. Build quality seems really good... Input voltage fluctuates rapidly when my truck is running, and output voltage fluctuates between 115 and 123 which is acceptable to me. It's more stable when the truck isn't running, but again, I wouldn't recommend leaving this unit on, even with nothing plugged in.It works for me because I have other options. I run it while I'm driving so i can charge my Anker Solix c1000 batteries